on super bowl sunday, the game between the harbaugh brothers is not the only fame if town. another smaller, furrier brawl will play out on animal planet's puppy bowl 9:0ix. >> no, no, no. >> translator: lineup scruffier, legs shorter. will there be plenty of grit. hamsters in the air. it's all-out animal mania. the best part, the animals come from pet finder. they're all available for adoption. in this game, they're all top dogs. >> touchdown! how does it feel? >> reporter: find out, puppy bowl ix on animal plant. it's our referee, dan. how are you? >> i'm pumped. these are the layers today. we have favorites now. four of them, i think, are going home with my colleagues. what are the rules? >> a chew toy has to be carried into the end zone. it's a touchdown. individual sport here. >> can we do it? let's do this thing. >> you want to do the game. >> all right, here we go, guys. >> one is clearly larger than the other. >> here's the kickoff. [ whistle blows ] >> go, number 2. go number 2. go, molly. >> nothing much happening. >> what we do is we -- >> go, go, number 3, oh, ye